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Message-ID: <20191031135617.249303-2-tmaimon77@gmail.com>
Date: Thu, 31 Oct 2019 15:56:15 +0200
From: Tomer Maimon <tmaimon77@...il.com>
To: <p.zabel@...gutronix.de>, <robh+dt@...nel.org>,
<mark.rutland@....com>, <yuenn@...gle.com>, <venture@...gle.com>,
<benjaminfair@...gle.com>, <avifishman70@...il.com>,
<joel@....id.au>
CC: <openbmc@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
<devicetree@...r.kernel.org>, Tomer Maimon <tmaimon77@...il.com>
Subject: [PATCH v3 1/3] dt-binding: reset: add NPCM reset controller documentation
Added device tree binding documentation for Nuvoton BMC
NPCM reset controller.
Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
---
.../bindings/reset/nuvoton,npcm-reset.txt | 32 +++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt
diff --git a/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt b/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt
new file mode 100644
index 000000000000..6e802703af60
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/nuvoton,npcm-reset.txt
@@ -0,0 +1,32 @@
+Nuvoton NPCM Reset controller
+
+Required properties:
+- compatible : "nuvoton,npcm750-reset" for NPCM7XX BMC
+- reg : specifies physical base address and size of the register.
+- #reset-cells: must be set to 2
+
+Optional property:
+- nuvoton,sw-reset-number - Contains the software reset number to restart the SoC.
+ NPCM7xx contain four software reset that represent numbers 1 to 4.
+
+ If 'nuvoton,sw-reset-number' is not specfied software reset is disabled.
+
+Example:
+ rstc: rstc@...01000 {
+ compatible = "nuvoton,npcm750-reset";
+ reg = <0xf0801000 0x70>;
+ #reset-cells = <2>;
+ nuvoton,sw-reset-number = <2>;
+ };
+
+Specifying reset lines connected to IP NPCM7XX modules
+======================================================
+example:
+
+ spi0: spi@..... {
+ ...
+ resets = <&rstc NPCM7XX_RESET_IPSRST2 NPCM7XX_RESET_PSPI1>;
+ ...
+ };
+
+The index could be found in <dt-bindings/reset/nuvoton,npcm7xx-reset.h>.
--
2.22.0
===========================================================================================
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